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Current Understanding of the TCTP Interactome
1Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
Abstract:
Evolutionarily conserved and pleiotropic, the translationally controlled tumor protein (TCTP) is a housekeeping protein present in eukaryotic organisms. It plays an important role in regulating many fundamental processes, such as cell proliferation, cell death, immune responses, and apoptosis. As a result of the pioneer work by Adam Telerman and Robert Amson, the critical role of TCTP in tumor reversion was revealed. Moreover, TCTP has emerged as a regulator of cell fate determination and a promising therapeutic target for cancers. The multifaceted action of TCTP depends on its ability to interact with different proteins. Through this interaction network, TCTP regulates diverse physiological and pathological processes in a context-dependent manner. Complete mapping of the entire sets of TCTP protein interactions (interactome) is essential to understand its various cellular functions and to lay the foundation for the rational design of TCTP-based therapeutic approaches. So far, the global profiling of the interacting partners of TCTP has rarely been performed, but many interactions have been identified in small-scale studies in a specific biological system. This chapter, based on information from protein interaction databases and the literature, illustrates current knowledge of the TCTP interactome.
Insights
The translationally controlled tumor protein (TCTP) is vital for cell functions and cancer therapy. Understanding its protein interactions, or interactome, is key to developing new cancer treatments.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- The translationally controlled tumor protein (TCTP) is an evolutionarily conserved, pleiotropic protein found in eukaryotes.
- TCTP regulates fundamental cellular processes including proliferation, apoptosis, and immune responses.
- Pioneering research identified TCTP's critical role in tumor reversion, highlighting its potential as a cancer therapeutic target.
Purpose of the Study:
- To consolidate current knowledge of the TCTP interactome.
- To provide a foundation for understanding TCTP's diverse cellular functions.
- To inform the rational design of TCTP-based therapeutic strategies.
Main Methods:
- Comprehensive review of protein interaction databases.
- Systematic literature search for identified TCTP interactions.
- Compilation and analysis of existing TCTP interactome data.
Main Results:
- TCTP's multifaceted actions are mediated through interactions with a network of proteins.
- These interactions regulate diverse physiological and pathological processes in a context-dependent manner.
- Existing data on TCTP interacting partners are largely from small-scale, system-specific studies.
Conclusions:
- A complete map of the TCTP interactome is essential for fully understanding its cellular roles.
- Further global profiling of TCTP interactions is needed.
- Elucidating the TCTP interactome will facilitate the development of novel cancer therapeutics.
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